Results 31 to 40 of about 40,305 (62)

Limit Orders and Knightian Uncertainty

International Economic Review, EarlyView.
ABSTRACT A wide variety of financial instruments allows risk‐averse traders to reduce their exposure to risk. This raises the question of what financial instruments allow ambiguity‐averse traders to reduce their exposure to ambiguity. We show in this paper that price‐contingent orders, such as limit orders, are sufficient: In a two‐period trading model,
Michael Greinecker, Christoph Kuzmics
wiley   +1 more source

Closed graph theorems for bornological spaces

, 2015
The aim of this paper is that of discussing Closed Graph Theorems for bornological vector spaces in a way which is accessible to non-experts. We will see how to easily adapt classical arguments of functional analysis over $\mathbb{R}$ and $\mathbb{C}$ to
Bambozzi, Federico
core   +1 more source

Estimating National and Foreign Trade Elasticities Using Generalized Transport Costs

Journal of Regional Science, Volume 65, Issue 2, Page 471-496, March 2025.
ABSTRACT We introduce the definition of two distinct trade elasticities corresponding to imports from regions located in the same country (national elasticities) and foreign regions located in other countries (foreign elasticities). We resort to a three‐tier nested CES utility structure to derive the corresponding demand gravity equations.
José L. Zofío, Jorge Díaz‐Lanchas, Damiaan Persyn, Javier Barbero   +3 more
wiley   +1 more source

Overview of (pro-)Lie group structures on Hopf algebra character groups

, 2017
Character groups of Hopf algebras appear in a variety of mathematical and physical contexts. To name just a few, they arise in non-commutative geometry, renormalisation of quantum field theory, and numerical analysis.
A Connes, A Murua, A Murua, A Murua, Andreas Kriegl, C Brouder, Dominique Manchon, E Hairer, Fernando Casas, G Bogfjellmo, G Bogfjellmo, H Alzaareer, H Glöckner, H Glöckner, H Glöckner, H Glöckner, H Yamabe, Hans Heinrich Keller, Helge Glöckner, Helge Glöckner, Helmut H. Schaefer, HZ Munthe-Kaas, HZ Munthe-Kaas, JC Butcher, JC Butcher, JW Milnor, K Ebrahimi-Fard, K Ebrahimi-Fard, K Ebrahimi-Fard, K Floret, K-H Neeb, Karl-Goswin Grosse-Erdmann, KH Hofmann, KH Hofmann, P Chartier, P Chartier, P Chartier, R Arens, R Dahmen, R Dahmen, Richard S. Hamilton, S Majid, W Bertram, Walter Michaelis, WD Suijlekom van, WD Suijlekom van, William C. Waterhouse, WS Gray   +47 more
core   +1 more source

The role of vitamin D receptor signaling in hair follicle health and alopecia: Current understanding and therapeutic implications

Journal of Cell Communication and Signaling, Volume 20, Issue 1, March 2026.
The vitamin D receptor (VDR) regulates hair follicle biology through ligand‐dependent and ligand‐independent mechanisms by heterodimerizing with retinoid X receptor, recruiting coactivator complexes, and activating target genes including Wnt inhibitors, hair keratins, and cell cycle regulators.
Liancheng Guan, Fan Yang, Meijuan Li, Yujia Chen, Zexin Zhao, Hongxia Li, Deping Luo, Qian Li, Yunzhi Chen   +8 more
wiley   +1 more source

Equivariant toric geometry and Euler–Maclaurin formulae

Communications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 451-557, March 2026.
Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell, Laurenţiu Maxim, Jörg Schürmann, Julius L. Shaneson   +3 more
wiley   +1 more source

Entropy rigidity for cusped Hitchin representations

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We establish an entropy rigidity theorem for Hitchin representations of geometrically finite Fuchsian groups which generalizes a theorem of Potrie and Sambarino for Hitchin representations of closed surface groups. In the process, we introduce the class of (1,1,2)‐hypertransverse groups and show for such a group that the Hausdorff dimension of
Richard Canary, Tengren Zhang, Andrew Zimmer   +2 more
wiley   +1 more source

A functional-analytic theory of vertex (operator) algebras, I

, 1998
This paper is the first in a series of papers developing a functional-analytic theory of vertex (operator) algebras and their representations. For an arbitrary Z-graded finitely-generated vertex algebra (V, Y, 1) satisfying the standard grading ...
Huang, Yi-Zhi
core   +1 more source

How Far Are Two Symmetric Matrices From Commuting? With an Application to Object Characterisation and Identification in Metal Detection

Mathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 1914-1942, February 2026.
ABSTRACT Examining the extent to which measurements of rotation matrices are close to each other is challenging due measurement noise. To overcome this, data is typically smoothed, and the Riemannian and Euclidean metrics are applied. However, if rotation matrices are not directly measured and are instead formed by eigenvectors of measured symmetric ...
P. D. Ledger, W. R. B. Lionheart, J. Elgy   +2 more
wiley   +1 more source

Adaptive Virtual Element Method of Material‐Field Series Expansion Topology Optimization and Its Application in Metamaterials

International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT This paper proposes a novel adaptive topology optimization framework that integrates the Virtual Element Method (VEM) with the Material‐Field Series Expansion (MFSE). Within the VEM‐MFSE framework, we propose a material gradient‐driven adaptive strategy, in which elements are refined in regions with higher material density gradients as the ...
Siqi Zhang, Kai Yang, Bing‐Bing Xu
wiley   +1 more source